Sea Technology

MAY 2017

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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30 st / May 2017 www.sea-technology.com foundation makes its data available to researchers and poli- cy makers worldwide to help assess changes in the health of marine plankton in response to a range of physical, chemi- cal and biological factors. Marine plankton are especially sensitive to changes in temperature, light, acidity and nutrient availability, among other environmental variables, and respond quickly to a variety of stressors. By observing the response of plankton, scientists can document the impact of climate change on the base of the marine food chain. As the source of approxi- mately half of the oxygen generated on Earth and respon- sible for removing approximately half of the carbon dioxide produced from burning fossil fuels, marine plankton play a critical role in maintaining the ratio of oxygen to carbon M onitoring the impact of anthropogenic climate change on the world's oceans requires accurate observations of how the Earth system changes over time. Since 1958, the Sir Alister Hardy Foundation for Ocean Science (SAHFOS) has been continually observing changes to the foundations of the marine ecosystem by gathering measurements of ma- rine plankton and assessing its overall health, abundance, community structure and distribution across the globe. The Instrumentation Advance Speeds Plankton Study SAHFOS Climate Change Researchers Put New FlowCam Macro on Trial By Dr. George Graham • Robert Camp (Top) A laboratory technician operates the FlowCam Macro installed at the SAHFOS laboratory in Plymouth, England. (Bottom) Observations of particles from a conventional con- tinuous plankton recorder (CPR) sample obtained with the FlowCam Macro. Images are shown of plankton (left panel), descriptive statistics (central panel), and images grouped into classification types (right panel).

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